NVIDIA GeForce 8800 GTX vs NVIDIA GeForce GT 645 OEM
What is the difference between NVIDIA GeForce 8800 GTX and NVIDIA GeForce GT 645 OEM. Find out which graphics card has better performance.
Graphics Processor (GPU)
| G80 | GPU Name | GF114 |
| Tesla | Architecture | Fermi 2.0 |
| TSMC | Foundry | TSMC |
| 90 nm | Process Size | 40 nm |
| 681 million | Transistors | 1,950 million |
| 484 mm² | Die Size | 332 mm² |
Graphics Card
| Nov 8th, 2006 | Release Date | Apr 24th, 2012 |
| GeForce 8 (8800) | Family | GeForce 600 |
| End-of-life | Production | End-of-life |
| GeForce 7 PCIe | Predecessor | GeForce 500 |
| PCIe 1.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 768 MB | Memory Size | 1024 MB |
| GDDR3 | Memory Type | GDDR5 |
| 384 bit | Memory Bus | 192 bit |
| 86.40 GB/s | Bandwidth | 91.87 GB/s |
Performance
| 13.82 GPixel/s | Pixel fillrate | 9.312 GPixel/s |
| 36.86 GTexel/s | Texture fillrate | 37.25 GTexel/s |
| 345.6 GFLOPS | FP32 (float) performance | 894.0 GFLOPS |
Clock Speeds
| 900 MHz 1800 Mbps effective | Memory Clock | 957 MHz 3.8 Gbps effective |
| 576 MHz | GPU Clock | 776 MHz |
Render Config
| 128 | Shading Units | 288 |
| 32 | TMUs | 48 |
| 24 | ROPs | 24 |
| 96 KB | L2 Cache | 384 KB |
| 16 | SM Count | 6 |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 270 mm 10.6 inches | Length | 210 mm 8.3 inches |
| 155 W | Thermal design power (TDP) | 102 W |
| 450 W | Suggested PSU | 300 W |
| 2x DVI 1x S-Video | Display Connectors | 2x DVI 1x mini-HDMI |
API support
| 11.1 (10_0) | DirectX | 12 (11_0) |
| 3.3 | OpenGL | 4.6 |
| 1.1 (1.0) | OpenCL | 1.1 |
| N/A | Vulkan | N/A |
| 4.0 | Shader Model | 5.1 |
| 1.0 | CUDA | 2.1 |